Blogging is fun and exciting. Looking at your blog grow can be one of the most satisfying things in your life. Posting every other day is also great especially with the knowledge that you are helping somebody somewhere. A point comes however, when you run out of ideas and you can't find something to write.
An inexperienced blogger would reduce the posting frequency, but you shouldn't let that be you. In fact that will be one of the mistakes you could make as a blogger. New blog content is very important. You can't just reduce your blog content and expect you are going very far.
For one having fresh content for you is great if you have been optimizing your site for the search engines. The likes of Google like blogs that are constantly updated with quality content. In fact if the Google bot constantly finds fresh content in your blog, it will increase the frequency of indexing your site.
Subscribers are also very important for the growth of a blog. It is not all the time you will have to depend on the search engines for traffic. You can get traffic from you feed subscribers. If you keep on posting, you will have something new to send them lets say every week.
So we agree that content is very important for your blog. One question still remains, if I have run out of steam and can't get ideas for my blog posts what do I do?
For one you will have to find things that inspire you to come up with new content. It could be either reading other blogs, interacting with other bloggers, observing things in life or even research. Find things you do that give you a clue on what to write.
You can also join social bookmarking sites like StumbleUpon so you know what is trending. You can find excellent articles that can give you an idea on what is in.
If you however you feel like you can't write maybe you could get assistance from outside. Take guest posting for example. You could allow people to post articles in your blog in exchange of exposure. This also gives your readers something different from a different writer.
You can hire people to write content for you. Get a really good writer who will charge you around $5 for a really good article. If you visit Freelancer.com you are bound to get enough people ready to sell their writing expertise.
If you don't have money to spend, then you don't have to worry. You can still get free content for your blog. The reason why most of us do Article Marketing, is the fact that such articles can be given free for republishing. So long as you are going to keep the content and links in the post or resource box intact, you can get articles from article submission sites. The publisher is happy since he gets backlinks and traffic to his site when his articles are published elsewhere and you are also happy that you got free content for your blog. It is a win-win situation.
I don't think you have a reason not to update your blog. Getting blog content is very easy and there is no reason your site should remain stale with old content.